Quote from overneathe
Rob Pardo is executive producer of Diablo 3. Ex-boss of Jay Wilson and Chief Creative Officer at Blizzard.
He has worked as designer on:
Lead designer to:
StarCraft: Brood War
WarCraft III: Frozen Throne
All World of Warcraft expansions including vanilla.
So in simplier terms, Wilson has full authority over D3. Rob has full authority over Wilson in a supervisory role.
We can thus safely blame Wilson for all the D3 launch problems. Rob's part is more on how well he supervised Wilson.